Delptronics ThunderBell User Manual download pdf

ThunderBell Mini Kit Instructions Page 1 of 10

Important Information

Thank you for your purchase of the Delptronics ThunderBell Mini Kit!

The most recent version of this document, and the instructions for the ThunderBell Eurorack Module Kit can be

downloaded from: http://delptronics.com/thunderbell.php

Before you start, please read the Electronic Kit Soldering Tutorial. It contains important and useful information even

for experienced kit builders. If this is your first electronic kit, the best piece of advice we can give is to take your time

and be careful to put the right part in the right place. The tutorial can be downloaded from:

http://delptronics.com/documents/SolderingTutorial.pdf

In the instructions that follow, each part type is followed by the PCB outline for that part. Refer to the enclosed

photograph of the completed kit for assistance with part identification and placement.

The PCB is marked with the refdes (reference designator) of each part, not its value. For example R1 refers to

resistor number one and C1 refers to capacitor number one. Once the part value is identified, it is easy to find the

refdes on the PCB.

Some parts must be oriented in a particular way, that is, the correct lead goes in the appropriate hole in the PCB. For

example, electrolytic capacitors are polarized (they have a positive lead and a negative lead). Ceramic capacitors are

not polarized, so it does not matter which of the two leads goes in which of the two holes. In these instructions, the

symbol (±) highlights parts that must be inserted with a particular orientation.

When you are ready to begin, separate the parts by type. Then, when you are ready to solder parts of a particular

type, separate them by value. Compare your parts to the bill of materials, which can be found on the last page of this

document. Make sure no parts are missing. These instructions list the parts in the recommended order of assembly.

In general, the order is shortest to tallest.

This manual is separated into two sections: board-mounted parts, which are soldered directly to the PCB, and off-

board parts which are connected to the PCB via wires.

Using the ThunderBell

Power: The ThunderBell is powered by a 9V battery.

Trigger Button: Press the button to make the bell sound.

Pitch Knob: controls the pitch of the bell.

Decay Knob: controls how long it takes for the bell’s volume to decay from its maximum level down to silence. The

bell can be re-triggered even while the last bell sound is still decaying.

CV (control voltage) Jack: allows you to control the pitch of the bell with an external analog device, like a

sequencer. It accepts zero to 5V, but has over-voltage protection. When a plug is inserted into the CV Jack, the pitch

knob is ignored.

Trigger Jack: allows you to trigger the bell sound using an external analog device like a sequencer. It accepts a 5 to

15 volt positive trigger or gate signal. The trigger button can still be used even when a plug is inserted into the Trigger

Jack.

Output Jack: Plug a ¼ mono cable into the output jack and plug the other end of the cable into your amplifier or

mixer. When a mono plug is inserted, the bell is powered on. A stereo plug will not work.

1 2 3 4 5 6 7 8 9 10

Summary of Contents

Page 1 - Using the ThunderBell

ThunderBell Mini Kit Instructions Page 1 of 10 Important Information Thank you for your purchase of the Delptronics ThunderBell Mini Kit! The most

Page 2 - Board-mounted Parts

ThunderBell Mini Kit Instructions Page 10 of 10 Bill of Materials Basic Kit Board-mounted Parts: Quantity Description Marking on part Refdes 3 BAT

Page 3 - Ceramic Capacitors

ThunderBell Mini Kit Instructions Page 2 of 10 Board-mounted Parts All of the board-mounted parts are supplied in a little plastic bag to keep them

Page 4 - Chip Socket (±)

ThunderBell Mini Kit Instructions Page 3 of 10 1N4148 Diode (±) Diodes are red and black glass cylinders. There are four diodes, and they all lo

Page 5 - PCB Inspection

ThunderBell Mini Kit Instructions Page 4 of 10 Chip Socket (±) There is one 8-pin socket. Sockets are marked with a small notch on one end that

Page 6 - Off-board Parts

ThunderBell Mini Kit Instructions Page 5 of 10 Chip (±) There is one chip in the kit. Note the direction of the chip before inserting it. The notch

Page 7 - Potentiometers

ThunderBell Mini Kit Instructions Page 6 of 10 Off-board Parts These parts are connected to the PCB via wires, as opposed to being soldered directl

Page 8

ThunderBell Mini Kit Instructions Page 7 of 10 Pots, Jacks and Trigger Button Wires Refer to the photo below when installing the pots, 3.5mm jacks

Page 9 - 9V Battery Snap (±)

ThunderBell Mini Kit Instructions Page 8 of 10 Trigger Jack (±) The Trigger jack is a 3.5 mm mono jack. Only two of the terminals of the Trigg

Page 10 - Bill of Materials

ThunderBell Mini Kit Instructions Page 9 of 10 Output Jack (±) The output jack is a ¼ inch stereo jack, also called a TRS (tip, ring, sleeve) jac

Delptronics ThunderBell User Manual

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Delptronics ThunderBell User Manual

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